Since it wouldn't be any fun to have you think this is easy I'm going to throw a curve ball and make it harder for you. Aren't I nice
So you've figured out how to identify butane and methane and all those other compounds, but how about 2 butyne.
That is what I will be teaching you today.
So I know you can identify this, it's 2 2 dimethyl propane, what I want to draw your attention to is those dashes ( - ) connecting the C to the CH3's. Those dashes represent a single bond.And I'm sure your wondering what this has to do with anything, but there organic compounds aren't connected by only single bonds their also connected by double and triple bonds. Like I said, wouldn't want this to be too easy for you.
Fortunately for you there isn't too much more tor remember when dealing with double and triple bonds,
here's what you have to know:
-ene = double bond
-yne = triple bond
when numbering the parent chain the double/triple bond takes the lowest number.
Also if there is more than one double/triple bond you put a multiplier in. For example hexatriyne.
And one more extra tidbit if two adjacent Carbons are bonded by double bonds and side chains there are only two possible compounds they could be.
Trans 2 butene
or Cis 2 butene
Simple right? (or at least not too difficult)
Now lets try a few examples.
Name the compounds.
(I'll go through the first one with you)
First circle the parent chain Then number the carbons 1-5 either from left to right or right to left (remember the double bond must have the lowest number)
The compound is (*drum roll*)
2 ethyl 1 pentene!
Now it's your turn (answers below)
1)
2)
(this one doesn't have the Hydrogen's but you should get the idea)3)
(Answers 1) 3 methyl 1 propyne, 2) 2 methyl 2 pentene, 3) 2 methyl 1 propene )
Happy naming
and of course to finish off a comic
(by the way the one asking if they look fat is glucose)
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